+++ /dev/null
-/*
-<:copyright-gpl
- Copyright 2002 Broadcom Corp. All Rights Reserved.
-
- This program is free software; you can distribute it and/or modify it
- under the terms of the GNU General Public License (Version 2) as
- published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-:>
-*/
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/addrspace.h>
-
-#include <bcm_intr.h>
-#include <bcm_map_part.h>
-#include <6348_intr.h>
-#include <6348_map_part.h>
-#include <bcmpci.h>
-
-#include <linux/delay.h>
-
-#if defined(CONFIG_USB)
-#if 0
-#define DPRINT(x...) printk(x)
-#else
-#define DPRINT(x...)
-#endif
-
-static int
-pci63xx_int_read(unsigned int devfn, int where, u32 * value, int size);
-static int
-pci63xx_int_write(unsigned int devfn, int where, u32 * value, int size);
-
-static bool usb_mem_size_rd = FALSE;
-static uint32 usb_mem_base = 0;
-static uint32 usb_cfg_space_cmd_reg = 0;
-#endif
-static bool pci_mem_size_rd = FALSE;
-
-static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE);
-
-static void mpi_SetupPciConfigAccess(uint32 addr)
-{
- mpi->l2pcfgctl = (DIR_CFG_SEL | DIR_CFG_USEREG | addr) & ~CONFIG_TYPE;
-}
-
-static void mpi_ClearPciConfigAccess(void)
-{
- mpi->l2pcfgctl = 0x00000000;
-}
-
-#if defined(CONFIG_USB)
-/* --------------------------------------------------------------------------
- Name: pci63xx_int_write
-Abstract: PCI Config write on internal device(s)
- -------------------------------------------------------------------------- */
-static int
-pci63xx_int_write(unsigned int devfn, int where, u32 * value, int size)
-{
- if (PCI_SLOT(devfn) != USB_HOST_SLOT) {
- return PCIBIOS_SUCCESSFUL;
- }
-
- switch (size) {
- case 1:
- DPRINT("W => Slot: %d Where: %2X Len: %d Data: %02X\n",
- PCI_SLOT(devfn), where, size, *value);
- break;
- case 2:
- DPRINT("W => Slot: %d Where: %2X Len: %d Data: %04X\n",
- PCI_SLOT(devfn), where, size, *value);
- switch (where) {
- case PCI_COMMAND:
- usb_cfg_space_cmd_reg = *value;
- break;
- default:
- break;
- }
- break;
- case 4:
- DPRINT("W => Slot: %d Where: %2X Len: %d Data: %08lX\n",
- PCI_SLOT(devfn), where, size, *value);
- switch (where) {
- case PCI_BASE_ADDRESS_0:
- if (*value == 0xffffffff) {
- usb_mem_size_rd = TRUE;
- } else {
- usb_mem_base = *value;
- }
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-/* --------------------------------------------------------------------------
- Name: pci63xx_int_read
-Abstract: PCI Config read on internal device(s)
- -------------------------------------------------------------------------- */
-static int
-pci63xx_int_read(unsigned int devfn, int where, u32 * value, int size)
-{
- uint32 retValue = 0xFFFFFFFF;
-
- if (PCI_SLOT(devfn) != USB_HOST_SLOT) {
- return PCIBIOS_SUCCESSFUL;
- }
-
- // For now, this is specific to the USB Host controller. We can
- // make it more general if we have to...
- // Emulate PCI Config accesses
- switch (where) {
- case PCI_VENDOR_ID:
- case PCI_DEVICE_ID:
- retValue = PCI_VENDOR_ID_BROADCOM | 0x63000000;
- break;
- case PCI_COMMAND:
- case PCI_STATUS:
- retValue = (0x0006 << 16) | usb_cfg_space_cmd_reg;
- break;
- case PCI_CLASS_REVISION:
- case PCI_CLASS_DEVICE:
- retValue = (PCI_CLASS_SERIAL_USB << 16) | (0x10 << 8) | 0x01;
- break;
- case PCI_BASE_ADDRESS_0:
- if (usb_mem_size_rd) {
- retValue = USB_BAR0_MEM_SIZE;
- } else {
- if (usb_mem_base != 0)
- retValue = usb_mem_base;
- else
- retValue = USB_HOST_BASE;
- }
- usb_mem_size_rd = FALSE;
- break;
- case PCI_CACHE_LINE_SIZE:
- case PCI_LATENCY_TIMER:
- retValue = 0;
- break;
- case PCI_HEADER_TYPE:
- retValue = PCI_HEADER_TYPE_NORMAL;
- break;
- case PCI_SUBSYSTEM_VENDOR_ID:
- retValue = PCI_VENDOR_ID_BROADCOM;
- break;
- case PCI_SUBSYSTEM_ID:
- retValue = 0x6300;
- break;
- case PCI_INTERRUPT_LINE:
- retValue = INTERRUPT_ID_USBH;
- break;
- default:
- break;
- }
-
- switch (size) {
- case 1:
- *value = (retValue >> ((where & 3) << 3)) & 0xff;
- DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %02X\n",
- PCI_SLOT(devfn), where, size, *value);
- break;
- case 2:
- *value = (retValue >> ((where & 3) << 3)) & 0xffff;
- DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %04X\n",
- PCI_SLOT(devfn), where, size, *value);
- break;
- case 4:
- *value = retValue;
- DPRINT("R <= Slot: %d Where: %2X Len: %d Data: %08lX\n",
- PCI_SLOT(devfn), where, size, *value);
- break;
- default:
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-#endif
-
-static int bcm96348_pcibios_read(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 * val)
-{
- volatile unsigned char *ioBase = (unsigned char *)(mpi->l2piobase | KSEG1);
- uint32 data;
-
-#if defined(CONFIG_USB)
- if (PCI_SLOT(devfn) == USB_HOST_SLOT)
- return pci63xx_int_read(devfn, where, val, size);
-#endif
-
- mpi_SetupPciConfigAccess(BCM_PCI_CFG(PCI_SLOT(devfn), PCI_FUNC(devfn), where));
- data = *(uint32 *)ioBase;
- switch(size) {
- case 1:
- *val = (data >> ((where & 3) << 3)) & 0xff;
- break;
- case 2:
- *val = (data >> ((where & 3) << 3)) & 0xffff;
- break;
- case 4:
- *val = data;
- /* Special case for reading PCI device range */
- if ((where >= PCI_BASE_ADDRESS_0) && (where <= PCI_BASE_ADDRESS_5)) {
- if (pci_mem_size_rd) {
- /* bcm6348 PCI memory window minimum size is 64K */
- *val &= PCI_SIZE_64K;
- }
- }
- break;
- default:
- break;
- }
- pci_mem_size_rd = FALSE;
- mpi_ClearPciConfigAccess();
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int bcm96348_pcibios_write(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- volatile unsigned char *ioBase = (unsigned char *)(mpi->l2piobase | KSEG1);
- uint32 data;
-
-#if defined(CONFIG_USB)
- if (PCI_SLOT(devfn) == USB_HOST_SLOT)
- return pci63xx_int_write(devfn, where, &val, size);
-#endif
- mpi_SetupPciConfigAccess(BCM_PCI_CFG(PCI_SLOT(devfn), PCI_FUNC(devfn), where));
- data = *(uint32 *)ioBase;
- switch(size) {
- case 1:
- data = (data & ~(0xff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- break;
- case 2:
- data = (data & ~(0xffff << ((where & 3) << 3))) |
- (val << ((where & 3) << 3));
- break;
- case 4:
- data = val;
- /* Special case for reading PCI device range */
- if ((where >= PCI_BASE_ADDRESS_0) && (where <= PCI_BASE_ADDRESS_5)) {
- if (val == 0xffffffff)
- pci_mem_size_rd = TRUE;
- }
- break;
- default:
- break;
- }
- *(uint32 *)ioBase = data;
- udelay(500);
- mpi_ClearPciConfigAccess();
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops bcm96348_pci_ops = {
- .read = bcm96348_pcibios_read,
- .write = bcm96348_pcibios_write
-};
projects / openwrt.git / blobdiff